Cotton-chopper.



Patented Mar. I3, 1900. D. C. DAVIS. COTTON CHOPPER. (A ppliction filed Nov. 29, 1899.)

No. 645,350. Patented Mar. l3, I900.

D. C. DAVIS.

COTTON CHOPPER.

(Application filed Nov. 29, 1899,.)

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No. 645,350. Patented Mar. I3, 1900.

n. c. DAVIS.

COTTON GHOPPEB. (Application filed. Nov. 29, 1599.

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Y 2 eg UNITED STATES DANIEL C. DAVIS, OF CASCADE, ARKANSAS.

COTTON? CHOPPER.

SPECIFICATION forming part of Letters Patent No. 645,350, dated March 13, 1900.

Application filed November 29, 1899. Serial No. 788,647- (No model.)

T0 aZZ whom, it may concern:

Be it known that I, DANIEL C. DAVIS, a citizen of the United States, residing at Cascade, in the county of Faulkner and State of Arkansas, have invented certain new and useful Improvements in Cotton-Choppers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to cotton-choppers.

The object of the invention is to provide a machine of this character which shall be simple of construction, durable in use, and comparatively inexpensive of production and one in which the stroke of the chopping-blade may be adjusted and held in fixed adjustment and when occasion requires adjusted independently of the fixed adjustment.

With these and other objects in view the invention consists in certain features of construction and combination of parts, which will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of my improved cottonchopper. Fig. 2 is a top plan view. Fig. 3 is a longitudinal sectional view. Fig. 4 is a detail perspective view of the yoke-frame.

In the drawings the same reference characters indicate the same parts of the invention.

1 denotes the supporting-Wheels fixed upon the axle 2 and provided on their inner faces with trip-blocks 3.

4 denotes a frame journaled upon the axle and provided with a pivoted pole 5.

6 denotes a bracket secured to the under side of the frame 4, and 7 denotes a yokeframe pivoted to said bracket. The yokeframe preferably consists of three parts Ct 12 c, the parts I) and 0 having arms d, which slide between clamp-plates e, bolted to the part a, and by means of which the side pieces I) and c are made laterally adjustable. To the side pieces Z2 and c are fixed the handles 8 of the machine. Pivoted to the upper surface of the yoke-frame is an oscillating plate 9, provided with a forked extremity 10. Pivoted to the lower side of the plate a of the yoke-frame, to turn with the oscillating plate, is a disk 11, provided with a sleeve 12.

13 denotes the chopping-blades provided with a shank 14, that has a sliding movement in the sleeve 12.

15 denotes two standards projecting upwardly from the oscillating plate and adapted to oscillate therewith. Pivoted between the upper'ends of these standards and midway of its length is a lever 16, the lower end of which is connected to the shank of the chopping-knives by a link 17. Chains or cords 18 are connected to the lever, one above its fulcrum and one below its fulcrum. The rear ends of these chains or cords are connected to crank-levers 19, pivoted near the grips of the handles, and by pulling upon one of these crank-levers the shank of the chopping-blades will be slid forward, and by pulling upon the other of these crank-levers the shank will be moved rearward, thus varying the amount of throw of the choppers.

2O denotes a vertical shaft journaled in bearings 21 22 and secured in fixed adjustment by the clamping-nuts 23 24. This shaft is provided at its upper end with a T-head 25, the ends of which project within the path of movement of the trip-blocks of the drive wheels.

26 denotes a crank-arm secured to the shaft and projecting downwardly between the forked arms of the oscillating plate.

' 27 denotes rods pivotally connecting the handle to the frame of the machine.

28 denotes cultivator-scrapers secured to the lower ends of the standards 29, which have their upper ends bolted to the rear ends of the yoke-frame.

30 denotes spring-plows having runners 31, the forward ends of which are vertically adj ustable in brackets 32, secured to the handle by means of set-screws 33.

In operating the machine the shaft to which the T-head is connected is adjusted so as to bring the ends of the T-head in vertical relation with the trip-blocks, so that a given throw will be imparted to the chopping-blades. If, however, in the operation of the machine as it is drawn along it be desired to increase this throw temporarily or for an instant, by pulling upon one of the crank-levers the shank of the chopping-blades will be drawn rearwardly, thus increasing the throw of said blades.

It is of course understood thatby raising or lowering the T-head the throw of the chopping-blades will be varied and the throw will be uniform until another adjustment of the T-head is made. Itsometimes happens, however, in the operation of machines of this character that it is desired to give a greater throw to the blades to reach cotton which would not be reached by the vertical adjustment of the T-head. My invention enables me to accomplish this result.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of my cotton-chopper will be readily apparent without requiring an extended explanation. It will be seen that the device is simple of construction, that said construction permits of its manufacture at small cost, and that it is exceedingly-well adapted for the purpose for which it is designed, and it will of course be understood that various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention;

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is

1. In a cotton chopper, the combination with the wheel-frame, a yoke-frame supported thereby; of an oscillating chopper-head, means for oscillating said head, means for adjusting the degree of oscillation of said head, and means for varying the degree of oscillation, one means being independent of the other, substantially as and for the purpose set forth.

2. In a cotton-chopper, the combination with the supporting-wheels provided with trip-blocks; of aframe journaled on the axle of said supporting-wheels, a yoke-frame connected to the firstnamed frame and provided with an oscillating plate formed with a bifurcated extension, a shaft j ournaled in said first named frame and provided with a T- head adapted to be actuated by the trip-blocks, a crank-arm extending from said shaft and engaging the bifurcated extension of the oscil lating plate, a disk mounted to turn with the oscillating plate and provided with a sleeve, chopping-blades provided with a shank extending through said sleeve, and means for moving said shank within said sleeve, substantially as and for the purpose set forth.

3. The combination with the drive-wheels provided with trip-blocks; of aframe mounted on the axle of the drive-wheels, a shaft vertically adjustably supported in brackets secured to said frame and provided with a T- head adapted to be engaged by the trip-blocks, a yoke-frame connected to the first-named frame, an oscillating plate provided with abifurcated extension, a crank-arm secured to the adjustable shaft and engaging said bifurcated extension, and chopping-blades connected to oscillate with the oscillating plate, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesscs.

DANIEL C. DAVIS.

\Vitnesses W. T. SUTTLE, S. T. KIRBY. 

